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Q&A

General Q&A about the design and function of electronic systems, electric power systems and infrastructure, their theory, and tools specific to those fields. Read these guidelines before posting.

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66%
+2 −0
Relationship between bode plot and pole zero diagram

What is the relationship between the pole zero diagram and bode plot? Case example: a 2nd order RLC low pass filter: - $$\dfrac{V_{OUT}}{V_{IN}} = \dfrac{\frac{1}{j\omega C}}{R+j\omega L +\frac{1}...

1 answer  ·  posted 4y ago by Andy aka‭  ·  edited 4y ago by ArtOfCode‭

66%
+2 −0
What to check for when buying an electronic component or module?

How can I acquire electronic parts/items/modules and ensure that there is minimal risk of them being unsuitable for my project or design?

2 answers  ·  posted 4y ago by Andy aka‭  ·  last activity 4y ago by manassehkatz‭

75%
+4 −0
Driving relay, transistor keeps failing

I'm trying to drive a relay according to a 5 V digital signal, using this circuit: It works for a while, but then the transistor fails. When I replace the transistor, it works for a while again, ...

1 answer  ·  posted 4y ago by Olin Lathrop‭  ·  last activity 4y ago by Olin Lathrop‭

75%
+4 −0
Replacement power supply voltage and current ratings?

If the external power supply to a device fails, and I can't get the exact model, what do I need to specify to get the right replacement? I can re-use the old supply's connector, but what about the...

1 answer  ·  posted 4y ago by Olin Lathrop‭  ·  last activity 4y ago by Olin Lathrop‭